Global Patent Index - EP 0968317 A1

EP 0968317 A1 2000-01-05 - METHOD OF FORMING INTERNAL PASSAGES WITHIN ARTICLES AND ARTICLES FORMED BY SAME

Title (en)

METHOD OF FORMING INTERNAL PASSAGES WITHIN ARTICLES AND ARTICLES FORMED BY SAME

Title (de)

VERFAHREN ZUR HERSTELLUNG INNERER HOHLRÄUME IN GEGENSTÄNDEN UND DADURCH GEFORMTE GEGENSTÄNDE

Title (fr)

PROCEDE PERMETTANT DE FORMER DES CANAUX A L'INTERIEUR DE PRODUITS ET PRODUITS FORMES PAR LEDIT PROCEDE

Publication

EP 0968317 A1 (EN)

Application

EP 98908856 A

Priority

  • US 9804054 W
  • US 81938197 A

Abstract (en)

[origin: WO9841668A1] A method of producing numerous small passages within a turbomachinery component is disclosed. The method comprises providing a turbomachinery component substrate having grooves, filling the grooves with a filler, condensing a vapor onto the surfaces of the substrate and the filler, and removing the filler. The method enables the formation of small passages located close to the component surface without the low yield rate associated with conventional methods of turbomachinery component production. Turbomachinery components having numerous small passages for cooling are also disclosed. Such passages may diminish fluid pressure losses of a cooling medium passing therethrough.

IPC 1-7

C23C 14/22

IPC 8 full level

B23P 15/02 (2006.01); C23C 14/00 (2006.01); C23C 14/02 (2006.01); C23C 14/58 (2006.01); F01D 5/18 (2006.01); F02C 7/00 (2006.01); F02C 7/18 (2006.01)

CPC

C23C 14/0005 (2013.01); F01D 5/187 (2013.01); F01D 5/20 (2013.01); Y02T 50/676 (2013.01); Y10T 29/49316 (2013.01); Y10T 29/4932 (2013.01); Y10T 29/49336 (2013.01); Y10T 29/49337 (2013.01); Y10T 29/49348 (2013.01); Y10T 29/49401 (2013.01); Y10T 29/49989 (2013.01)

Citation (search report)

See references of WO 9841668A1

DCS

DE FR GB IT

DOCDB simple family

WO 9841668 A1 19980924; AR 012080 A1 20000927; CA 2284015 A1 19980924; CN 1250487 A 20000412; DE 69808056 D1 20021024; DE 69808056 T2 20030417; EP 0968317 A1 20000105; EP 0968317 B1 20020918; JP H10263936 A 19981006; KR 20000076249 A 20001226; US 5875549 A 19990302